Adjustable music-roll spool for automatic musical instruments.



C. E. WHITE. ADJUSTABLE MUSI'C ROLL S9001. FOR AUTOMATIC MUSICAL INSTRUMENTS.

APPFICATON FILED AUG8|1916.

Patented Jan. 1, 1918.

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-,Patented@m1414918- l4 .Application ledAugust 8,1916. Y Serial No; 113,683.

4 To all whomz'may'cancem:

Be 'it known that 5I, vCLINTON EVANS -HITL a .citizen oftheUnitedaStates, and -residentf of- Irvington, inthe county ofv Es- Y sex and ','StatefofNew Jerseyfhave invented [certain `new and u'se'ful r Improvements `in Adjustable Music-Roll. Spools fon Automatic Musical Instruments, of which thefollowing "is a specification. f

My,y invention'y relates to spoolsfor Ath music-rolls of Self-playing musicalY instruments, 'and has "for lits-'object to provide an improved construction of; suchfrolls,l so `as to secure ian* adjustment ofalthel roll length,

.within fcertain:limitar-and also :toi-.facilitate the proper re-rolling of the inu'siclroll 'or sheet. To this enthumywinvention consists in 'ii-certain novel? eon'structinand arrangement- 'of parts, as will be fully described in the specfiicationl Afo'llowing-'ihreinafter, nand particularly pointed out in the appended claims.

Reference is to be had to the accompanying drawing, in which Figure l is a longitudinal section of my improved music-roll spool, showing the same adjusted to its maXimum length;Fig. 2 is a partial longitudinal section, showing the right-hand portion of Fig. 1, adjusted to the position of minimum spool length; and Fig. 3 is a cross Section taken on the line 3-3 of Fig. l.

The body A of the spool may be made of a tube of spirally-wound cardboard, or any other suitable cylindrical body adapted to serve as a support for the music-sheet, generally of the well-known perforated character. At one end of this body I locate the stationary head B, having the customary diametrical slot B for connection with the mechanism which supports and winds or rotates the spool, said head being made, in the particular construction shown, with an axial inward projection B fitted into the adjacent end of the tubular body A, preferably with the interposition of a sleeve C (of cardboard or other suitable material) between said projection and the body A, said sleeve being fastened, as by gluing, both to the body A and to the head B. At the other end of the body A is arranged the adjustable head D, formed with the customary cylindrical or slightly conical socket D for the reception of the pin or like part of the mechanism which forms a support for that end of the spool. Here too, a sleeve, E, is interposed between the axial inward projection --D of, the head D and theadjacent; inner surfaceof Kthe bodyV A, but whereas the sleeve C is generally longer than the .projection iB, theifsleeve Esis shorterthan the axial projection or kstud -.D,x.being confined-bevtween. the flange D* .of-,the adjustable head 1D` andlran `annular outward projection or .burl' D# at the innerend of-said stud. The fheads BD :are generallyniade of hard rubvbemand the inner end of-thestud D,` may be' originally smooth, like thelinnery end-of the stud B, and the burD# may be formed 'oni-said end,after the: sleeve `E =has been `placed-on vthe studIDf, by pressing said .y end against afheated-metal plate.- "'The sleeve maybe made of cardboard, and is of such aidiame'ter' as to 'engage vthe oute'rfsurface -of Ytll'iestu'd D with sufficient lforce to prevent accidental motion of the stud and head relatively to the sleeve E, the'latterbeing'per- 'manently or rigidly secured to the body A,

as by gluing it thereto, but the inner surface of the sleeve has a loose (sliding) engagement with the cvlindrical outer surface of the stud D. Thus, within the two limits represented in Figs. l and 2, the stud D and the entire head D may be adjusted in or out, lengthwise of the spool body A, thus altering the effective length of the said spool; yet in each position, the frictional engagement of the inner surface of the sleeve E with the outer surface of the stud D will prevent any accidental lengthening or shortening of the spool, that is to say, any accidental sliding of the adjustable head relatively to the spool body.

The' adjustability of the head D not only enables the spool to accommodate note-sheets or music-rolls of different widths (within the limits of adjustment), but is also of great utility at the time of performing the re-rolling operation, or immediately prior thereto. Frequently, the sheet does not run quite straight, and in such cases the edge of the sheet is liable to become injured by the flanges of the spool heads. If, however, at the beginning of the re-rolling operation, or immediately prior thereto, the adjustable head D of my improved spool is pushed inward by the operator until the flange D* presses against the edge of the sheet, the sheet will be brought into such a position that during re-rolling both edges will be in proper guiding engagement with the flanges of the respective heads B and D, and that the sheet will travel perfectly .straight during re-winding and will therefore be coiled evenly on the spool.

Various modiications may be made without departing from the nature of my invention as set forth in the appended claims.

The frictional engagement between the adjustable head and the adjacent end of the body, or rather the sleeve which is rigidly secured within said tubular end, is sufficient to cause said head to turn with the body, whatever position the head may be adjusted to.

I claim as my invention:

1. A music-roll spool comprising a cylindrical body with heads at each end, one end of the body being tubular, and the head which is adjacent to said end being formed with a projection extending inwardly from the flange of the head into said tubular end portion of the body, the outer surface of said projection being cylindrical and out of contact with the inner surface of the body end, and the end of said projection being formed with a flange or stop projecting toward the inner surface of the tubular body end, and a sleeve secured to the said inner surface of the tubular body end and tted between said stop and the flange of the head, in sliding engagement with the cylindrical outer surface of said projection on the head, whereby said head may be adjusted relatively to the spool body lengthwise.

2. A music-roll spool comprising a cylindrical body with heads at each end, one end of the body being tubular, and the head which is adjacent to said end being formed with a projection extending inwardly from the flange of the head into said tubular end `portion of the body, the outer surface of said projection being of uniform cross section and out of contact withothe inner surface of the body end, and the end of said projection being formed with a Harige or stop projecting toward the` inner surface-of the tubular body end, and a sleeve secured to the said inner surface of the tubular body end and fitted between said stop and the flange of the head, in sliding engagement with the outer surface of said projection on the head, whereby vsaid head may be adjusted relatively to the spool body lengthwise.

In testimony whereof I have signed this specification.

Y CLINTON EVANS WHITE.

Gbpies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

